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Auflistung nach Schlagwort "open-source"

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  • Textdokument
    Feature-based Comparison of Open Source OPC-UA Implementations
    (INFORMATIK 2020, 2021) Mühlbauer, Nikolas; Kirdan, Erkin; Pahl, Marc-Oliver; Waedt, Karl
    OPC UA is an industry-standard architecture for automation, process controlling and monitoring. It is a detailed and complex machine-to-machine communication protocol which makes it challenging to implement. The complexity of the protocol leads to heterogeneity among implementations. Today, there are several open-source implementations without a compliance certificate accredited by the OPC Foundation. Certified implementations undergo various tests to fulfil interoperability. Every implementation fits different use-cases and requirements as each of them comes with its own features. In this paper, we make a feature-based comparison of the most common open-source OPC UA implementations. We investigate their support for the essential features and functionalities. Furthermore, we evaluate their interoperability. Overall, our study shows that open-source implementations have good coverage of features and functionalities, especially open62541 and UA-.NETStandard. Furthermore, our tests show that they do not have any significant interoperability issue.
  • Konferenzbeitrag
    UnitEye: Introducing a User-Friendly Plugin to Democratize Eye Tracking Technology in Unity Environments
    (Proceedings of Mensch und Computer 2024, 2024) Wagner, Tobias; Colley, Mark; Breckel, Daniel; Kösel, Michael; Rukzio, Enrico
    Eye tracking is a powerful tool for analyzing visual attention, as an input technique, or for diagnosing disorders. However, eye tracking hardware is expensive and not accessible to everyone, thus, considerably limiting real-world usage or at-home evaluations. Although webcam-based eye tracking is feasible due to advances in computer vision, its open-source implementation as an easy-to-use tool is lacking. We implemented UnitEye, a Unity plugin enabling eye tracking on desktop and laptop computers. In a technical evaluation (N=12), we tested the precision and accuracy of our system compared to a state-of-the-art eye tracker. We also evaluated the usability of UnitEye with N=5 developers. The results confirm that our system provides reliable eye tracking performance for a webcam-based system and well-integrated features contributing to ease of use.